.item img{margin: 0 auto;}
body,th,td,button,input,select,textarea{
    font-family:"Helvetica Neue","Microsoft Yahei","Hiragino Sans GB",
    Helvetica,tahoma,arial,Verdana,sans-serif,"WenQuanYi Micro Hei","\5B8B\4F53";
    font-size:12px;
    color: #333;-webkit-font-smoothing: antialiased;-moz-osx-font-smoothing:grayscale}